Treatment strategies and outcomes in a long-term registry study of patients with high-risk metastatic hormone-naïve prostate cancer in Japan: An interim analysis of the J-ROCK study.
Int J Urol
; 29(9): 1061-1070, 2022 09.
Article
en En
| MEDLINE
| ID: mdl-36018236
ABSTRACT
OBJECTIVE:
The prognosis of high-risk metastatic hormone-naïve prostate cancer is poor, and real-world evidence of therapeutic options and sequences is lacking. The J-ROCK study aimed to evaluate the outcomes in a real-world setting in Japan.METHODS:
Patients with high-risk metastatic hormone-naïve prostate cancer diagnosed after May 2019 were eligible. Based on their treatment within 3 months after diagnosis, patients were allocated to either cohort 1 (androgen deprivation therapy alone or combined androgen blockade with bicalutamide) or cohort 2 (androgen deprivation therapy with abiraterone acetate+prednisolone, docetaxel, enzalutamide, or apalutamide).RESULTS:
In this first interim analysis (cut-off January 2021), 410 patients were enrolled, including 163 patients in cohort 1 and 247 in cohort 2. The median follow-up period was 7.6 (range 0.1-20.5) months. A higher proportion of patients in cohort 2 (42.5%) achieved nadir prostate-specific antigen levels ≤0.2 ng/ml within a year, compared with cohort 1 (22.1%). Prostate-specific antigen-progression-free survival was also more favorable in cohort 2 (adjusted hazard ratio 0.629 [95% confidence interval 0.345-1.147]).CONCLUSIONS:
The higher proportion of cohort 2 suggest a paradigm shift has occurred in the real-world treatment of high-risk metastatic hormone-naïve prostate cancer in Japan. Some factors including prostate-specific antigen may affect treatment selection but need further observation. Most patients in cohort 2 received abiraterone acetate+prednisolone. The proportion of patients in cohort 1 receiving combined androgen blockade was lower than previously reported in Japan. This analysis suggest that more intensive therapy tends to prolong prostate-specific antigen-progression-free survival in patients with high-risk metastatic hormone-naïve prostate cancer.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Próstata
/
Neoplasias de la Próstata Resistentes a la Castración
Tipo de estudio:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
/
Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
Int J Urol
Asunto de la revista:
UROLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Japón